| Step | Riser Height (inches) | Tread Depth (inches) | Cumulative Rise (inches) | Cumulative Run (inches) |
|---|---|---|---|---|
| 1 | 7.5 | 10 | 7.5 | 10 |
| 2 | 7.5 | 10 | 15.0 | 20 |
| 3 | 7.5 | 10 | 22.5 | 30 |
| 4 | 7.5 | 10 | 30.0 | 40 |
| 5 | 7.5 | 10 | 37.5 | 50 |
| 6 | 7.5 | 10 | 45.0 | 60 |
| 7 | 7.5 | 10 | 52.5 | 70 |
| 8 | 7.5 | 10 | 60.0 | 80 |
| Landing | 7.5 | 10 | 67.5 | 90 |
| 9 | 7.5 | 10 | 75.0 | 100 |
| 10 | 7.5 | 10 | 82.5 | 110 |
| 11 | 7.5 | 10 | 90.0 | 120 |
| 12 | 7.5 | 10 | 97.5 | 130 |
| 13 | 7.5 | 10 | 105.0 | 140 |
| 14 | 7.5 | 10 | 112.5 | 150 |
| 15 | 7.5 | 10 | 120.0 | 160 |